Review on Probability Sampling Methods

Which of the following is not a probability sampling method?

• Convenience sampling

• Simple Random sampling

• Stratified sampling

• Cluster Sampling

Why do we randomly select our samples?

• to increase bias
• to reduce bias
• so we don't get the same answers from everyone
• because it's easier

A ___ is a large group that includes everything being studied.

• Sample

• Sampling Frame

• Population

• Sampling Error

This is the difference between the mean of a parameter in the population and that of the sample.

• Sample

• Sampling Frame

• Population

• Sampling Error

A department store mails a customer satisfaction survey to people who make credit card purchases at the store. This month, 45,000 people made credit card purchases. Surveys are mailed to 1000 of these people, chosen at random, and 137 people return the survey form. Identify the population and the sample.

• P: 45,000 people who made credit card purchases.

  S: 137 returned surveys.

• P: 1,000 people that made credit card purchases who received a survey

  S: 137 returned surveys.

• P: 45,000 people who made credit card purchases.

  S: 1,000 people that made credit card purchases who received a survey

• P: All people who that have made credit card purchases.

  S: 1,000 people that made credit card purchases who received a survey

The research student interviews every 10th student who enters the canteen.

• simple random

• systematic sampling

• stratified sampling

• cluster sampling

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

• simple random

• systematic sampling

• stratified sampling

• cluster sampling

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 3 blocks and survey all households on those block.

• simple random

• systematic sampling

• stratified sampling

• cluster sampling

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.

• simple random

• systematic sampling

• stratified sampling

• cluster sampling

School admin conducted a survey on post-graduation plans. Students of senior class 2018 were listed in order by class rank. The school selected a random number between 1 and 15, obtaining a number 11. Then, they selected every 11th student for the survey.

• simple random

• systematic sampling

• stratified sampling

• cluster sampling